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    The effects of paraffin oil on phototropic and geotropic responses in avena coleoptiles

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    Date
    1966
    Author
    HUMPHRY, VR
    Type
    Article; en
    Language
    en
    Metadata
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    Abstract
    Experiments are described which were designed to test the significance of the coleoptile tip as the site of reception of light stimulus leading to negative photo-tropic response under paraffin oil. The results show clearly that the tip is of paramount importance in this respect. Further experiments in which the coleoptile tips were bisected in a plane at right angles to the light rays lend support to the hypothesis that negative phototropism under oil is related tolateral transport of material in the tip. Lastly, experiments which show that the geotropic response of coleoptiles is not reversed by immersion in oil are described. These findings are discussed in relation to certain hypotheses concerning the mechanism of negative phototropism under oil.
    URI
    http://hdl.handle.net/11295/85653
    Citation
    Humphry, V. R. (1966). The effects of paraffin oil on phototropic and geotropic responses in Avena coleoptiles. Annals of Botany, 30(1), 39-45.
    Publisher
    University of Nairobi
    Collections
    • Faculty of Science & Technology (FST) [4220]

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